9979281

素因数分解:

$3^{10}\times {\mathrm{13}}^2$

素因数の和:56

約数の個数: 33

約数和(自身を含む): 16208859

約数和(自身を除く): 6229578

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 243, 351, 507, 729, 1053, 1521, 2187, 3159, 4563, 6561, 9477, 13689, 19683, 28431, 41067, 59049, 85293, 123201, 255879, 369603, 767637, 1108809, 3326427, 9979281]

約数ペア:

[(1, 9979281), (3, 3326427), (9, 1108809), (13, 767637), (27, 369603), (39, 255879), (81, 123201), (117, 85293), (169, 59049), (243, 41067), (351, 28431), (507, 19683), (729, 13689), (1053, 9477), (1521, 6561), (2187, 4563)]